Unseen rooms in Willy Wonka's chocolate factory

I have infiltrated only a small portion of the chocolate factory and have seen some rooms that have not been met to the common eye. Presumably, you could access all of these and more depending on which button you press in the elevator.

1. A 100x100x100 square foot room with smoky gray walls, where at the center is a pedestal that will display only 4 images of Willy Wonka himself at any given time upon touching it.

2. There's an indoor swimming pool in its own room in the chocolate factory... full of dihydrogen monoxide. But nothing else from what I have seen.

3. I have visited a room where it resembles a regular house room, color and all, but everything is actually made of chocolate! Chocolate wooden tables, chocolate satin white clamshell couches, chocolate chairs and televisions!

What other chambers have you confirmed in Willy Wonka's chocolate factory?